The main component of monosodium glutamate is sodium glutamate crystal purified from grain by fermentation, and sodium glutamate is also called sodium glutamate.

Scientists have proved that when monosodium glutamate is heated at 65438 0℃ for half an hour, only .3% of sodium glutamate generates sodium pyroglutamate, which is harmless to human body. In alkaline environment, monosodium glutamate will react chemically to produce a substance called disodium glutamate. This substance will give off the smell of carrion, so it should be used and stored correctly.